Finding the Fourth Proportional to 47,209.59, 70,781.58 and 20,899.98

Step by Step Solution

1. Step 1: Write the proportion equation
   47,209.59 : 70,781.58 = 20,899.98 : x
2. Step 2: Convert to fraction form
   47,209.59/70,781.58 = 20,899.98/x
3. Step 3: Cross multiply
   47,209.59x = 70,781.58 × 20,899.98
4. Step 4: Simplify right side
   47,209.59x = 1,479,333,606.37
5. Step 5: Solve for x
   x = 1,479,333,606.37/47,209.59
6. Step 6: Final answer
   x = 31,335.45